The Peterbilt Mega Cab 6 Inch Extension Kit is a practical and beneficial product for Peterbilt truck owners. This kit includes a 6-inch extension, a diamond plate tool tray, and a structural stiffening ring for older models. The pre-assembled fiberglass panel, along with pre-installed bracing and sound deadening core, ensures a precise fit and reduces noise. With features like an upholstery boot, included window, and hardware and sealer, this kit is convenient and easy to install. Its Class A gel coat finish adds durability and a polished look. Suitable for most Peterbilt models, this kit is a must-have for truck enthusiasts.